NOVA

Deadliest Tornadoes Preview

Preview: Season 39 Episode 10 | 30s  | Video has closed captioning.

In 2011, the worst tornado season in decades left a trail of destruction across the U.S., killing more than 550 people. Why was there such an extreme outbreak? How do such outbreaks form? With modern warning systems, why did so many die? Is our weather getting more extreme - and if so how bad will it get?

Aired: 04/10/12

Rating: NR

Buy Now:

Problems Playing Video? | Closed Captioning

National Corporate funding for NOVA is provided by Carlisle Companies. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.

Support provided by:

NOVA Labs

Interactive

NOVA Labs

NOVA Labs is a free digital platform that engages teens and lifelong learners in games and interactives that foster authentic scientific exploration. Participants take part in real-world investigations by visualizing, analyzing, and playing with the same data that scientists use.

Play

More Science and Nature Shows

  • Nature
  • Eons
  • The Invisible Shield
  • Be Smart
  • PBS Space Time
  • Deep Look
  • Weathered
  • Untold Earth
  • Reactions
  • Your Inner Fish
  • America Outdoors with Baratunde Thurston
  • Human Footprint